Hillenbrand, Dr. Ulrich and van Hemmen, Prof. Dr. J. Leo (2000) Spatiotemporal adaptation through corticothalamic loops: A hypothesis. [Journal (Paginated)]
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Abstract
The thalamus is the major gate to the cortex and its control over cortical responses is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic processing has been difficult to interpret. For an understanding of complex sensory processing, detailed concepts of the corticothalamic interplay need yet to be established. Drawing on various physiological and anatomical data, we elaborate the novel hypothesis that the visual cortex controls the spatiotemporal structure of cortical receptive fields via feedback to the lateral geniculate nucleus. Furthermore, we present and analyze a model of corticogeniculate loops that implements this control, and exhibit its ability of object segmentation by statistical motion analysis in the visual field.
Item Type: | Journal (Paginated) |
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Keywords: | lateral geniculate nucleus, corticothalamic feedback, control loop, object segmentation, motion analysis |
Subjects: | Neuroscience > Neural Modelling Neuroscience > Computational Neuroscience Biology > Theoretical Biology |
ID Code: | 2406 |
Deposited By: | Hillenbrand, Dr. Ulrich |
Deposited On: | 15 Aug 2002 |
Last Modified: | 11 Mar 2011 08:54 |
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